Re: make oldconfig bzImage with GCC 4.9.2 on debian 8

On Thu, May 28, 2015 at 12:47 PM, Dhiraj Bhor <dhirajbhor21@gmail.com> wrote:

Hi Sven,

I applied the patch suggested but it did not worked for me.
I wanted to let you know that i am compiling kernel version 2.6.20 and given link has patch applicable for 2.6.27 which is not working for me.

When i applied the patch, i got following error:

CC kernel/capability.o
CC kernel/ptrace.o
In file included from kernel/ptrace.c:16:0:
include/linux/pagemap.h: In function ‘fault_in_pages_readable’:
include/linux/pagemap.h:222:16: warning: variable ‘c’ set but not used [-Wunused-but-set-variable]
volatile char c;
^
CC kernel/timer.o
In file included from include/asm/current.h:4:0,
from include/linux/capability.h:46,
from include/linux/sched.h:46,
from include/asm/irq.h:13,
from include/linux/kernel_stat.h:4,
from kernel/timer.c:22:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
CC kernel/user.o
In file included from include/asm/current.h:4:0,
from include/linux/capability.h:46,
from include/linux/sched.h:46,
from kernel/user.c:12:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
CC kernel/signal.o
CC kernel/sys.o
CC kernel/kmod.o
kernel/kmod.c: In function ‘____call_usermodehelper’:
kernel/kmod.c:134:28: warning: variable ‘old_session’ set but not used [-Wunused-but-set-variable]
struct key *new_session, *old_session;
^
kernel/kmod.c:134:14: warning: variable ‘new_session’ set but not used [-Wunused-but-set-variable]
struct key *new_session, *old_session;
^
CC kernel/workqueue.o
In file included from include/asm/current.h:4:0,
from include/linux/capability.h:46,
from include/linux/sched.h:46,
from include/linux/utsname.h:35,
from include/asm/elf.h:12,
from include/linux/elf.h:7,
from include/linux/module.h:15,
from kernel/workqueue.c:19:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
CC kernel/pid.o
CC kernel/rcupdate.o
In file included from include/asm/current.h:4:0,
from include/linux/wait.h:26,
from include/linux/mmzone.h:9,
from include/linux/gfp.h:4,
from include/linux/slab.h:14,
from include/linux/percpu.h:5,
from include/linux/rcupdate.h:41,
from kernel/rcupdate.c:38:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
CC kernel/extable.o
CC kernel/params.o
CC kernel/posix-timers.o
In file included from include/asm/current.h:4:0,
from include/linux/capability.h:46,
from include/linux/sched.h:46,
from include/linux/mm.h:4,
from kernel/posix-timers.c:33:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
CC kernel/kthread.o
CC kernel/wait.o
CC kernel/kfifo.o
CC kernel/sys_ni.o
CC kernel/posix-cpu-timers.o
CC kernel/mutex.o
In file included from include/asm/current.h:4:0,
from include/linux/capability.h:46,
from include/linux/sched.h:46,
from kernel/mutex.c:16:
include/asm/irq_regs.h: In function ‘set_irq_regs’:
include/asm/pda.h:39:16: warning: variable ‘tmp__’ set but not used [-Wunused-but-set-variable]
if (0) { T__ tmp__; tmp__ = (val); } \
^
include/asm/pda.h:95:30: note: in expansion of macro ‘pda_to_op’
#define write_pda(field,val) pda_to_op("mov",field,val)
^
include/asm/irq_regs.h:22:2: note: in expansion of macro ‘write_pda’
write_pda(irq_regs, new_regs);
^
kernel/mutex.c: At top level:
kernel/mutex.c:60:8: warning: type defaults to ‘int’ in declaration of ‘__used’ [-Wimplicit-int]
static __used noinline void fastcall __sched
^
kernel/mutex.c:60:1: warning: ‘noinline’ attribute ignored [-Wattributes]
static __used noinline void fastcall __sched
^
kernel/mutex.c:60:24: error: expected ‘,’ or ‘;’ before ‘void’
static __used noinline void fastcall __sched
^
In file included from include/asm/system.h:4:0,
from include/asm/processor.h:18,
from include/linux/prefetch.h:14,
from include/linux/list.h:8,
from include/linux/mutex.h:13,
from kernel/mutex.c:15:
kernel/mutex.c: In function ‘mutex_lock’:
kernel/mutex.c:91:38: error: ‘__mutex_lock_slowpath’ undeclared (first use in this function)
__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
^
include/linux/kernel.h:311:25: note: in definition of macro ‘typecheck_fn’
({ typeof(type) __tmp = function; \
^
kernel/mutex.c:91:2: note: in expansion of macro ‘__mutex_fastpath_lock’
__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
^
kernel/mutex.c:91:38: note: each undeclared identifier is reported only once for each function it appears in
__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
^
include/linux/kernel.h:311:25: note: in definition of macro ‘typecheck_fn’
({ typeof(type) __tmp = function; \
^
kernel/mutex.c:91:2: note: in expansion of macro ‘__mutex_fastpath_lock’
__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
^
kernel/mutex.c: At top level:
kernel/mutex.c:96:8: warning: type defaults to ‘int’ in declaration of ‘__used’ [-Wimplicit-int]
static __used noinline void fastcall __sched
^
kernel/mutex.c:96:1: warning: ‘noinline’ attribute ignored [-Wattributes]
static __used noinline void fastcall __sched
^
kernel/mutex.c:96:24: error: expected ‘,’ or ‘;’ before ‘void’
static __used noinline void fastcall __sched
^
In file included from include/asm/system.h:4:0,
from include/asm/processor.h:18,
from include/linux/prefetch.h:14,
from include/linux/list.h:8,
from include/linux/mutex.h:13,
from kernel/mutex.c:15:
kernel/mutex.c: In function ‘mutex_unlock’:
kernel/mutex.c:116:40: error: ‘__mutex_unlock_slowpath’ undeclared (first use in this function)
__mutex_fastpath_unlock(&lock->count, __mutex_unlock_slowpath);
^
include/linux/kernel.h:311:25: note: in definition of macro ‘typecheck_fn’
({ typeof(type) __tmp = function; \
^
kernel/mutex.c:116:2: note: in expansion of macro ‘__mutex_fastpath_unlock’
__mutex_fastpath_unlock(&lock->count, __mutex_unlock_slowpath);
^
kernel/mutex.c: At top level:
kernel/mutex.c:192:8: warning: type defaults to ‘int’ in declaration of ‘__used’ [-Wimplicit-int]
static __used noinline void fastcall __sched
^
kernel/mutex.c:192:1: warning: ‘noinline’ attribute ignored [-Wattributes]
static __used noinline void fastcall __sched
^
kernel/mutex.c:192:24: error: expected ‘,’ or ‘;’ before ‘void’
static __used noinline void fastcall __sched
^
kernel/mutex.c:260:8: warning: type defaults to ‘int’ in declaration of ‘__used’ [-Wimplicit-int]
static __used fastcall noinline void
^
kernel/mutex.c:260:1: warning: ‘regparm’ attribute only applies to function types [-Wattributes]
static __used fastcall noinline void
^
kernel/mutex.c:260:1: warning: ‘noinline’ attribute ignored [-Wattributes]
kernel/mutex.c:260:33: error: expected ‘,’ or ‘;’ before ‘void’
static __used fastcall noinline void
^
kernel/mutex.c:260:8: warning: ‘__used’ defined but not used [-Wunused-variable]
static __used fastcall noinline void
^
scripts/Makefile.build:203: recipe for target 'kernel/mutex.o' failed

Please help me resolve this.
Thanks,
Dhiraj

On Tue, May 26, 2015 at 10:40 PM, Sven Arvidsson <sa@whiz.se> wrote:
On Tue, 2015-05-26 at 16:37 +0530, Dhiraj Bhor wrote:
> After this i got some error while make bzImage as follows:
[...]
> *kernel/built-in.o: In function `mutex_lock':*
> *(.sched.text+0xea5): undefined reference to `__mutex_lock_slowpath'*
> *kernel/built-in.o: In function `mutex_unlock':*
> *(.sched.text+0xeb5): undefined reference to `__mutex_unlock_slowpath'*
> *Makefile:744: recipe for target 'vmlinux' failed*
> *make: *** [vmlinux] Error 1*
>

I'm guessing you need to do something like:
http://www.brunni.de/linux_kernel_2.6.27.62_with_gcc_4.6.3.html

--
Cheers,
Sven Arvidsson
http://www.whiz.se
PGP Key ID 6FAB5CD5